Menu bar unresponsive with external monitor setup

I'm using an external Dell monitor with MacBook Pro M1 with the latest updated version of MacOS. When I disconnect the monitor and switch user, the menu bar becomes unresponsive, and I have to replug the monitor to restore the functionality of the menu bar.


If I log out and try to log back in, the whole system becomes unresponsive and I need to restart.


The screenshot shows how the menu bar is a bit out of its place. Normally it extends below the notch, but when it's stuck, it's more narrow and the text is not aligned properly. When this happens, the Apple menu and the text menu items are not working. The icon items on the right side of the screen work normally.


I believe it has something to do with the scaling and resolution of the external monitor. It has 4K resolution, and the scaling is set to non-default value to have more screen estate.


killall SystemUIServer does not help here.


Twice I tried talking to Apple Support about this, but they didn't have a clue and wanted to send the computer to Apple service, but to me this doesn't seem a hardware failure but there's something in the software instead.


Any thoughts?


Thanks :)


MacBook Pro 16″

Posted on Apr 12, 2023 10:25 PM

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20 replies

Oct 27, 2023 1:41 AM in response to Luis Sequeira1

No such program that modifies the menu bar, and besides that, the problem happened also with a fresh-fresh install I did a few weeks ago. The suspect currently is that something from the company IT management system messes up something, as it is installed on computer setup and I can't skip it. I have submitted a ticket to remove the computer from the management system temporarily, to check if that has any effect on this issue. But that would not explain why the same issue happens to someone else as well.


This morning I updated to MacOS 14.1, and the issue still persists.


The laptop display resolution is at its default, and the external is set at 3008 x 1692.


Here's the Etrecheck report.


Mar 6, 2024 9:43 PM in response to iskanje

I don't have much helpful to add except that this consistently happens for me when I unplug my external monitors and then switch to a different account after the monitors are unplugged.


My workaround is to switch to the second user, then before the menu bar completely disappears, switch back to the first user that was active when I unplugged the monitors (If that's not possible I use the power button to lock the screen and then switch to the original user from the login screen), and then switch back to the second user I actually want to use. On the second account switch everything works fine.


Very annoying.

Oct 13, 2023 2:34 AM in response to iskanje

Do you have any program that modifies the menu bar position, like "top notch" or similar?


Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

What is the resolution that your monitor is set to? Maybe it was a matter of linguistics, but "more real estate" would imply setting the monitor to a higher resolution, which seems odd.

Oct 27, 2023 1:57 AM in response to iskanje

Thank you for the report.


There are so many configuration profiles in there... I have no idea what they do and whether they have an effect on the problem at hand.


You also have "MeetingBar" - which apparently is a sort of calendar application that runs from the... menu Bar. I wonder if it has anything to do with meu bar problems. You could temporarily uninstall and see how things go. If there is no change, you can reinstall it.


I am not familiar with this munki software. There is so much stuff that is managed in this machine that I think only the IT guys installing this can give you answers - if they know.


The odd thing is that fresh fresh install...

It would be interesting if there was a chance to try a different mac with the same display and see if that would make any difference. FWIW, I work with external displays all the time, but on an Intel MBP, I don't know if that would make any difference vs an M1 Mac. Also, now that I think about it, I don't connect or disconnect displays when my mac is sleeping, but with it awaken. I will test later, as I have a class to teach in 5 minutes.



Oct 27, 2023 4:53 AM in response to iskanje

iskanje wrote:

Just came to my mind that the setting "Displays have separate Spaces" could have something to do with this issue, as it places the Menu Bar to the external display.

It shouldn't be a problem, but it is worth a try. Losing "Displays have separate Spaces" would be a big blow to the productivity of most people using multiple screens. I thanked Apple when it was introduced in 10.9 and never ever turned it off since then (except for occasional tests prompted by issues in these discussions).

Oct 5, 2023 5:11 AM in response to Jadcx

Okay, good to know that I'm not the only one. I have been talking to support several times, and the only thing they can recommend is to re-install the OS.


I changed that Dell 4K monitor to Asus ProArt 4K, and the same behaviour happens.


Also tried removing much of software that could intervene with the display, but no difference there.

Oct 12, 2023 9:40 PM in response to iskanje

It appears the issue occurs when a laptop is disconnected from an external display while in sleep mode and then when users are switched. I've found a workaround, which is to log out and log back in for the affected user instead of restarting.


The possible steps to recreate the issue are:

  1. Log in to multiple users while connected to an external display
  2. Let the laptop go to sleep
  3. Disconnect from the external display while the laptop is asleep and switch users


Personally, I don't believe it's related to the hardware since it was happening before I upgraded my laptop, possibly since Ventura.

Mar 4, 2024 11:58 PM in response to iskanje

Same problem here. I am running the latest software MacOS 14.3.1 the issue still persists. I thought I was the only one after browsing through the internet and reddit. Stump across this thread and found out people with similar issue.


What I encountered were exactly the same as what the author described, when switching between with two accounts unplug the external monitors and the UI just bugs out. Wonder if Apple is investgating this issue at all... I am planning to give apple support a call and report this behaviour. See if they can do much about it with their software team.

May 22, 2024 2:04 PM in response to endwell777

endwell777 wrote:

Push.. Since two years I have the same issue :(

This is a user-to-user technical support forum. Everyone here is a volunteer, and pushing them is not a good idea.


Read and try all the previous replies to this thread.


If you have additional information to contribute, then include it in a post, along with EVERYTHING you have tried after reading all the previous replies, as well as anything else you have tried.


If that does not work, then consider contacting Apple Support, or the vendor of your monitor, or the vendor of your cable, or the vendor or your adapter, or the vendor of your dock.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Menu bar unresponsive with external monitor setup

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